(S/E) From the church car park, head towards Rue Beaudouin and follow it to the left. There is a gate leading to Château de Vigny.
(1) Take Chemin du Bourbier on the right, follow it and pass the first junction.
(2) At the top of the path, at the Croix Jacquedot, turn left onto Chemin de Vernon. Follow it straight on until you reach the junction with the D51, where you turn left towards Théméricourt.
(3) After the circular bend to the left, take the first road on the right, which goes round a farm towards the cemetery.
(4) The road passes behind the château, which is the headquarters of the Maison du Parc du Vexin. Continue past the cemetery until you reach a T-junction with a wayside cross on your right.
(5) Turn left towards Avernes and join the Grande Rue (Route de Beauvais).
(6) Turn left, cross the village via the Route de Beauvais and carry on straight ahead along the Grande Rue.
(7) At the end of the village, turn left into Rue Valette, continue along this road and pass Rue du Château.
(8) Turn right onto a path running alongside a wall. Continue straight on along the path until you reach the Croix Saint-Lucien.
(9) Turn left onto the D51 and take the first track on the right. Pass a track on the left and, at the T-junction, turn left.
(10) At the next junction, take the path on the right, go straight on and follow the wall of Vigny Castle until you reach the D169.
(11) Turn left, walk past the château and head back towards the church car park (S/E).